watson



(No Model.)

B. NICHOLS & G. E. WATSON.

REDUCTION MILL.

No. 263,948 Patented Sept. 5, 1882.

FL, f X.

WITNESSES O QINVENTOR 4.65 mm/ .M MM i BY ATTORNEYS.

the feed-box.

UNITED STATES PATENT OFFICE.

BENJAMIN NICHOLS AND GEORGE E. WATSON, OF KENNEDY, NEW YORK.

REDUCTION-MILL.

SPECIFICATION formingpart of Letters Patent No. 263,948, dated September5, 1882.

' Application filed April 5, 1882. (No model.)

To all whom it may concern:

Be it known that we, BENJAMIN NIcHoLs and GEORGE E. WATSON, of Kennedy,in the county of Chautauqua and State of New Yorlr, have invented a newand useful Improvement in Reduction-Mills, of which the following is afull, clear,and exact description.

Our improved mill is designed for grinding all kinds of grain and forbreaking and degerminating wheat.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figurelisa front elevation, partly sectional, of our improved mill; andFig. 2 is a vertical transverse section of the mill.

A is a roller journaled in boxes at a, and Bis the surface-plate. Theroller and plate are arranged on a suitable frame, 0, which is providedwith a feed-box, b, and feed-roller c. the latter being sustained at thelower end of The boxes a, carrying the roller, are loose upon screws 00, that are sustained in screw-threaded bearings at d d. On the screws,between the boxes and the bearin gs, are spiral springs e e, which forcethe boxes and rollers toward the surface-plate B, so that the roller isheld nearly in contact with the surfaceplate. The distance can be variedby drawing the boxes out with the screws; and to prevent accidentalmovement of the screws they are provided with ratchet-wheels f, engagedby spring-pawls g. The surface-plate B is of any suitable width,according to the extent of surface required. It is made as a plate heldin a dovetail mortise of a carrying-block, It, so that the plate can beremoved for repairs or substitution of another. The block it is hung bypivots k at its lower end, and is set up and held in place by screws'1', so that it can be adjusted at the desired angle or tangent totheroller. The roller and plate are made of any suitable material,preferably chilled iron, and are provided with any number oflauds andfurrows of any required form, according to the character of work to bedone.

In operation the grain passes from the feedbox and roller 0 to apointbetween roller A and the surface-plate B. At the bottom of hopper b andabove the feed-roller is fitted a slide, 1, adapted to be adjusted backand forth in the hopper by any suitable means for bring ing a greater orless length of the grinding-surface into use. The mill is adapted torgrind- .55 mg and pulverlzing grain and other material, 7

and described, consisting of the grinding-roller

